hurricaneshurricanes
What is a hurricane
A Hurricane is a
tropical cyclone with
wind speeds that
exceed 64 knots (74
mph) and circulate
counter-clockwise in
the Northern
Hemisphere
(clockwise in the
Southern Hemisphere).
stages of hurricane
development
1:Tropical Depression: A low-
pressure system forms with
winds less than 39 mph (63 km/h).
2:Tropical Storm: When winds
reach 39-73 mph (63-118 km/h), the
storm becomes a tropical
storm.
3:Hurricane: When winds exceed
74 mph (119 km/h), the storm
becomes a hurricane.
1:Tropical Depression: A low-
pressure system forms with
winds less than 39 mph (63 km/h).
2:Tropical Storm: When winds
reach 39-73 mph (63-118 km/h), the
storm becomes a tropical
storm.
3:Hurricane: When winds exceed
74 mph (119 km/h), the storm
becomes a hurricane.
Where do hurricanes form?
Hurricanes typically form near the equator, in tropical and
subtropical regions. This is because water temperatures
must be at least 80°F (27°C) for the storm to develop.
parts of a hurricane
Eye: The calm center of the
storm.
Eye Wall: The region
surrounding the eye with
the strongest winds and
heaviest rains.
Spiral Rain Bands: Bands of
rain and storms that
spiral outward from the
center.
Methods Scientists Use to Take
Measurements
Hurricane Hunters:
Aircraft flown into the
storm to measure wind
speeds and collect data.
Satellites: Used to
monitor the storm from
space, providing data on
its size, speed, and
location.
Doppler Radar: Measures
wind speed and
precipitation levels
Saffir-Simpson Scale
The Saffir-Simpson scale
classifies hurricanes into five
categories based on wind speed:
Category 1: Winds 74-95 mph
(minimal damage).
11..
Category 2: Winds 96-110 mph
(extensive damage).
22..
Category 3: Winds 111-129 mph
(devastating damage).
33..
Category 4: Winds 130-156 mph
(catastrophic damage).
44..
Category 5: Winds over 157 mph
(catastrophic damage).
55..
The Saffir-Simpson scale
classifies hurricanes into five
categories based on wind speed:
Category 1: Winds 74-95 mph
(minimal damage).
1.
Category 2: Winds 96-110 mph
(extensive damage).
2.
Category 3: Winds 111-129 mph
(devastating damage).
3.
Category 4: Winds 130-156 mph
(catastrophic damage).
4.
Category 5: Winds over 157 mph
(catastrophic damage).
5.
Hurricanes cause five types of damage:
Wind Damage: Destruction of buildings,
trees, and power lines.
Flooding: Caused by heavy rains and
storm surge.
Storm Surge: Rise in sea level due to
wind-driven water.
Tornadoes: Hurricanes can spawn
tornadoes that cause additional
damage.
Power Outages: Due to wind and
flooding damage to electrical
infrastructure
damage caused by hurricanes
How Hurricanes are Named
Hurricanes are named using lists of
predetermined names, alternating
between male and female names.
Once a hurricane causes significant
damage or loss of life, its name is
retired to avoid confusion in future
storms.
sources:
Source 1
Source
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